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<head><meta charset="utf-8"><title>I-prioritize #78893 No error reported when an impl Trait do… · t-compiler/wg-prioritization/alerts · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/index.html">t-compiler/wg-prioritization/alerts</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20an.20impl.20Trait.20do.E2.80.A6.html">I-prioritize #78893 No error reported when an impl Trait do…</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2378893%20No%20error%20reported%20when%20an%20impl%20Trait%20do%E2%80%A6/near/216080217" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20an.20impl.20Trait.20do.E2.80.A6.html#216080217">(Nov 09 2020 at 13:00)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="3111">@WG-prioritization/alerts</span> issue <a href="https://github.com/rust-lang/rust/issues/78893">#78893</a> has been requested for prioritization.</p>
<h1><a href="https://forge.rust-lang.org/compiler/prioritization/procedure.html#assign-priority-to-unprioritized-issues-with-i-prioritize-label">Procedure</a></h1>
<ul>
<li>Priority?</li>
<li>Regression?</li>
<li>Notify people/groups?</li>
<li>Needs <code>I-nominated</code>?</li>
</ul>



<a name="216123803"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2378893%20No%20error%20reported%20when%20an%20impl%20Trait%20do%E2%80%A6/near/216123803" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Noah Lev <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20an.20impl.20Trait.20do.E2.80.A6.html#216123803">(Nov 09 2020 at 18:19)</a>:</h4>
<p>I'd say P-high to P-critical</p>



<a name="216220346"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2378893%20No%20error%20reported%20when%20an%20impl%20Trait%20do%E2%80%A6/near/216220346" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> apiraino <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20an.20impl.20Trait.20do.E2.80.A6.html#216220346">(Nov 10 2020 at 14:38)</a>:</h4>
<p>From afar, I can't see a lot but I think I agree on a <code>P-critical</code>. The sample provided does not look "strange". </p>
<p>I also read <a href="https://github.com/rust-lang/rust/pull/73905#issuecomment-714709884">this comment</a> from the PR but I don't understand how or if it's related to this issue</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2378893%20No%20error%20reported%20when%20an%20impl%20Trait%20do%E2%80%A6/near/216247242" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Noah Lev <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20an.20impl.20Trait.20do.E2.80.A6.html#216247242">(Nov 10 2020 at 17:48)</a>:</h4>
<p>I think the comment is saying that the compiler is <em>more</em> restrictive <em>after</em> this PR and won't make arbitrary choices on your behalf. It looks like it fixed or partially fixed two long-standing issues.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize%20%2378893%20No%20error%20reported%20when%20an%20impl%20Trait%20do%E2%80%A6/near/216248280" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Noah Lev <a href="https://rust-lang.github.io/zulip_archive/stream/245100-t-compiler/wg-prioritization/alerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20an.20impl.20Trait.20do.E2.80.A6.html#216248280">(Nov 10 2020 at 17:55)</a>:</h4>
<p>(Assigned P-critical, but it went into a separate topic because the title has changed: <a href="#narrow/stream/245100-t-compiler.2Fwg-prioritization.2Falerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20a.20generic.20parame.E2.80.A6">https://rust-lang.zulipchat.com/#narrow/stream/245100-t-compiler.2Fwg-prioritization.2Falerts/topic/I-prioritize.20.2378893.20No.20error.20reported.20when.20a.20generic.20parame.E2.80.A6</a>)</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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